MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bb1a45b9565214a01f8fe010584d7ffd50c5bdcebb2395b7a435cad844093bb1. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry

Mirai

Vendor detections: 9

Intelligence 9 IOCs YARA 2 File information Comments

SHA256 hash:	bb1a45b9565214a01f8fe010584d7ffd50c5bdcebb2395b7a435cad844093bb1
SHA3-384 hash:	d2112e9e6921628fa04a4a06345bba9a9e9d41cc38b9cd9683cfb77ef445ad16aaec2b5c81cc7854eb5b9312d147557d
SHA1 hash:	7af00945bea835e2da8fbfb809de34b62b9c6e45
MD5 hash:	b117bb31f1f546a91ec8edb569dda676
humanhash:	victor-winter-helium-fillet
File name:	nullnet_bash.sh
Download:	download sample
Signature	Mirai Create hunting rule
File size:	3'825 bytes
First seen:	2026-03-27 15:22:08 UTC
Last seen:	Never
File type:	sh
MIME type:	text/x-shellscript
ssdeep	96:vfIGIBfIPIXfIcIlfIKIBfIlITnfI+IhfIrIjfIvI5fIwINfIDIBfIkItfIG7IGl:XD4Q6P8rYSmf5scCCQ/o2oRUpUKeSi8l
TLSH	T150813DC81330C7327DA28526A1B95AE433C495D355EB8FE1B2F73F619848E1C39A4B91
TrID	70.0% (.SH) Linux/UNIX shell script (7000/1) 30.0% (.) Unix-like shebang (var.3) (gen) (3000/1)
Magika	shell
Reporter	BlinkzSec
Tags:	mirai

Shell script dropper

This file seems to be a shell script dropper, using wget, ftpget and/or curl. More information about the corresponding payload URLs are shown below.

URL	Malware sample (SHA256 hash)	Signature	Tags
http://144.172.105.56/nullnet_bin_dir/nullnet_load.x86	1a675737eab617a53c0eea787c995662598d1457ce99efbe306b7d8d28e4d372	Mirai	mirai
http://144.172.105.56/nullnet_bin_dir/nullnet_load.mips	e06a96e238b0c2c4a72bde8f3f7cd8920fcbb539ae760c110740d8a6c1232c1b	Mirai	mirai
http://144.172.105.56/nullnet_bin_dir/nullnet_load.mpsl	ba14f0deb074738b8e93d2beed1f72ee65d54f2f41a3b78e7777e0e2e50ab00e	Mirai	mirai
http://144.172.105.56/nullnet_bin_dir/nullnet_load.arm	625e2ef515c656e7cb5ec6440df58e8e545b55dada1934b24d3c8ae3e767253b	Mirai	mirai
http://144.172.105.56/nullnet_bin_dir/nullnet_load.arm5	ab92589347b1cb5262aef0b60976352968e012223132d0878d1596fd59acd2e7	Mirai	mirai
http://144.172.105.56/nullnet_bin_dir/nullnet_load.arm6	94234c40137032359b856140b970d2120a8acb50d64e2d5cbb4779b5ca7413da	Mirai	mirai
http://144.172.105.56/nullnet_bin_dir/nullnet_load.arm7	919f83adf548667693bf9056dd14555fcc64b7a855ed4bc1fae0712be2aedc20	Mirai	mirai
http://144.172.105.56/nullnet_bin_dir/nullnet_load.ppc	8c415a0b9279fc7a5cb72c0fddfe0be53d9da8c092edd55479b8b04ac468f553	Mirai	mirai
http://144.172.105.56/nullnet_bin_dir/nullnet_load.m68k	1ac41c59155b3e13a8af681ba363b5968162195aeec2c10ea5fae43a9f4c02fb	Mirai	mirai
http://144.172.105.56/nullnet_bin_dir/nullnet_load.sh4	e65da4625748cb6612837f05e19d3a998fac626075f1c15dd5a945421b85ac90	Mirai	mirai
http://144.172.105.56/nullnet_bin_dir/nullnet_load.spc	a20e6b829c391c825949fd971f863ec9d654095db1e1ad5cfe2f05f7d25ee6bc	Mirai	elf mirai ua-wget
http://144.172.105.56/nullnet_bin_dir/nullnet_load.arc	205c5c526bf121543297c619245d43c983a34626cd96c7100525fbce6b4867ba	Mirai	mirai
http://144.172.105.56/nullnet_bin_dir/nullnet_load.x86_64	b9ff5b1a87001fc513ca0526b5734b1925bdb673f3ed159a36bf6d078e453d5d	Mirai	elf mirai ua-wget
http://144.172.105.56/nullnet_bin_dir/nullnet_load.i686	bcf5aa14d139a865aa901f48c665139971a00918a699f4179bd4c468868d04da	Mirai	elf mirai ua-wget
http://144.172.105.56/nullnet_bin_dir/nullnet_load.i486	4897019f7d7f09bba05c9cb7eb9215c0cad257b1840ea752cbc90fae3b2fb720	Mirai	elf mirai ua-wget

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

No detections

Detection(s):

Sanesecurity.Malware.30790.LX.BOT.UNOFFICIAL

SecuriteInfo.com.Linux.Downloader-29.UNOFFICIAL

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

medusa mirai

Link:

https://www.filescan.io/uploads/69c6a24b2346b9da57ab665e/reports/64f28e80-2bb5-498e-a60e-ff0287b451c8/overview

Result

Gathering data

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/c61d1d30-8a5a-41ed-9e4c-30c28f7d465e

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/bb1a45b9565214a01f8fe010584d7ffd50c5bdcebb2395b7a435cad844093bb1

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/bb1a45b9565214a01f8fe010584d7ffd50c5bdcebb2395b7a435cad844093bb1/

Verdict:

Malicious

Threat:

Family.MIRAI

Link:

https://tip.neiki.dev/file/bb1a45b9565214a01f8fe010584d7ffd50c5bdcebb2395b7a435cad844093bb1

Threat name:

Linux.Downloader.Medusa

Status:

Malicious

First seen:

2026-03-27 15:20:18 UTC

File Type:

Text (Shell)

AV detection:

21 of 36 (58.33%)

Threat level:

3/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=xmnelokwkikkah4p4aifqtl77vimlpooxmrzln5egxfnqrajhoyq._file

Result

Malware family:

mirai

Score:

10/10

Tags:

family:mirai botnet:ecchi antivm botnet credential_access defense_evasion discovery linux upx

Link:

https://tria.ge/reports/260327-sr1snsb13j/

Behaviour

Reads runtime system information

System Network Configuration Discovery

Writes file to tmp directory

Changes its process name

Checks CPU configuration

Reads system network configuration

Reads process memory

UPX packed file

Enumerates active TCP sockets

Enumerates running processes

File and Directory Permissions Modification

Executes dropped EXE

Modifies Watchdog functionality

Contacts a large (50075) amount of remote hosts

Creates a large amount of network flows

Mirai

Mirai family

Malware Config

C2 Extraction:

bitches.gunna.pro

Malware family:

Mirai

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/bb1a45b95652/report/overview.html

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Suspicious File

Score:

0.65

Link:

https://yomi.yoroi.company/submissions/bb1a45b9565214a01f8fe010584d7ffd50c5bdcebb2395b7a435cad844093bb1

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:	Linux_Shellscript_Downloader Create hunting rule
Author:	albertzsigovits
Description:	Generic Approach to Shellscript downloaders

Rule name:	MAL_Linux_IoT_MultiArch_BotnetLoader_Generic Create hunting rule
Author:	Anish Bogati
Description:	Technique-based detection of IoT/Linux botnet loader shell scripts downloading binaries from numeric IPs, chmodding, and executing multi-architecture payloads
Reference:	MalwareBazaar sample lilin.sh